The Nipmuck Trail campsite provides plenty of room to put a few tents and has 2 fire pits as well, though only one looks to be routinely used. There is a nearby stream that looks like it would provide water year round.
The walk down to the Pixie falls it lovely and the shade provided by the trees and the cool running water should provide some relief from the heat in the summer, be sure to check it out on the way by.